a small crystal of ice floating in the high atmosphere; a constituent of snow mist

(idiomatic) something that is difficult or impossible to locate; something impossibly complex or intractable

The small gap in a needle, with just enough space for a thread to pass through.

A type of valve having a small orifice and a needle-like plunger, allowing precise regulation of generally small flow rates.

Used other than figuratively or idiomatically: A needle used for darning. / A damselfly, or a dragonfly that resembles one.

Vachellia farnesiana, sweet acacia, huisache, native to the tropical Americas, now widespread in warm climates on all continents.

plural of bore needle

(medicine, surgery) A needle with a hole in its center.

The angle a balanced magnetic needle makes with the plane of the horizon, measured by the dipping needle, or compass.

fainting or similar discomfort as a result of acupuncture